145544464 has 20 divisors (see below), whose sum is σ = 303684556. Its totient is φ = 67174272.

The previous prime is 145544461. The next prime is 145544467. The reversal of 145544464 is 464445541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145544461) and next prime (145544467).

It can be written as a sum of positive squares in 2 ways, for example, as 49112064 + 96432400 = 7008^2 + 9820^2 .

It is not an unprimeable number, because it can be changed into a prime (145544461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349659 + ... + 350074.

Almost surely, 2^145544464 is an apocalyptic number.

It is an amenable number.

145544464 is an abundant number, since it is smaller than the sum of its proper divisors (158140092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145544464 is a wasteful number, since it uses less digits than its factorization.

145544464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699754 (or 699748 counting only the distinct ones).

The product of its digits is 153600, while the sum is 37.

The square root of 145544464 is about 12064.1810331245. The cubic root of 145544464 is about 526.0155267287.

The spelling of 145544464 in words is "one hundred forty-five million, five hundred forty-four thousand, four hundred sixty-four".